Over the next two decades, the world’s energy system will undergo a huge transformation. Wind and solar power are poised to become dominant sources of electricity. China’s once-relentless appetite for coal is set to wane. The amount of oil we use to fuel our cars could peak and decline. But there’s a catch: The global march toward clean energy still isn’t happening fast enough to avoid dangerous global warming, at least not unless governments put forceful new policy measures in place to reduce carbon dioxide emissions. That’s the conclusion of the International Energy Agency, which on Monday published its annual World Energy Outlook , a 661-page report […]